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The advice below applies to a temperate to a cold climate. Depending on the width of the broiler house Tulderhof advises the following.
| Type of pig house | Air inlet | Width of house |
|---|---|---|
| Sows in group housing | Twin OS | Until 20m |
| Sows in group housing | Flash | > 20m |
| Sows in group housing with obstacles in the ceiling | Flash | various |
| Sows in box housing | Flash | various |
